fromn the FAq's :https://www.brickboard.com/FAQ/700-900/ElectricalIgnition.htm#TimingOffRingGearOutofPosition-

This information should be corrected:
Timing Off; Ring Gear Out of Position. [Tip from John Sargent] If your flywheel has been replaced and you are experiencing timing problems, check the position of the ring gear which determines timing. To check this, remove the starter and position the engine on TDC for number one cylinder. There are 58 holes on the timing ring, with a void of two holes (room for 60 holes, total). The void will be at the bottom of the starter opening if the ring gear is installed properly. See other timing tips in Engine Performance.
The void on the timing ring will be at the top of the starter opening. In fact the void will be just barely visible as in these photos.

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89-740 GLE_91-940 Sedan _98-V90 Wagon_2001Mazda626